Charge Pump and Step Up DC DC Converter Solutions for Powering White LEDs in Series or Parallel Connections:    Maxim Application Note #1037 (app note added 7/03)

Circuit Delivers Dimming Control for White LED Driver:    10/28/04 EDN Design Ideas  / (added 1/05)  The demand for power in color cell-phone handsets is constantly increasing. New applications steadily emerge, making it imperative to reduce power consumption in the design. Examination of usage data shows that more than 50% of the power consumed is in providing backlighting for the color screen. People use the phones for playing games and MP-3s and a multitude of other heavy-duty, multimedia f...

Circuit Drives Latching Relays:    02/01/96 EDN-Design Ideas / (added 3/03)

Circuit Drives Mixed Types and Quantities of LEDs:    10/03/02 EDN Design Ideas  /  (added 1/05)  Portable systems often use LEDs of different colors and in varying quantities of each color. Some examples are white for the display backlight, green for keypad illumination, and red for power. Typically, the LEDs derive power from at least two power supplies: one for "standard" LEDs (red and green) and one for white LEDs....

Compact Inductorless Boost Circuit Regulates White LED Bias Current:    Maxim Application Note #1116 (app note added 7/03)

Constant Current Constant Voltage Converter Drives White LEDs:    09/02/04 EDN Design Ideas  /  (added 1/05)  LEDs usually take their drive from a constant dc-current source to maintain constant luminescence. Most dc/dc converters, however, deliver a constant voltage by comparing a feedback voltage to an internal reference via an internal error amplifier. The easiest way to turn a simple dc/dc converter into a constant-current source is to use a sense resistor to convert the output current to a voltage......

Constant-current, constant-voltage converter drives white LEDs:    LEDs usually take their drive from a constant dc-current source to maintain constant luminescence. Most dc/dc converters, however, deliver a constant voltage by comparing a feedback voltage to an internal reference via an internal error amplifier. The easiest way to turn a simple dc/dc converter into a constant-current source is to use a sense resistor to convert the output current to a voltage...  Design Ideas EDN, 09/02/2004  (schematic added 06/07)

DC/DC Converter Drives LumiLEDs White LEDs from a Variety of Power Sources:    DN340  Design Notes (Linear Technology) (app note added 6/06)

Drive High Intensity White LEDs Efficiently using the PIC16C781:    Microchip Application Note Published 17-Jul-02   (app note added 6/06)

Dual Full Function White LED Step-Up Converter with Built-In Schottky Diodes:    Linear Technology LT3466 (app note added 02/05)

Dual White LED Driver Features Integrated Switches and Schottky Diodes in 3mm × 3mm Dfn Package:    DN1010  Design Notes (Linear Technology)  (app note added 1/06)

Economical Circuit Drives White LEDs:    11/23/00 EDN-Design Ideas / (added 6/06)

Efficiently Powering Nine White LEDs with the MCP1650:    Microchip Application Note Published 3-Aug-04   (app note added 2/06)

Flying inductor LED series voltage boost circuit:    A circuit that goes in series with a white LED and a 1.5 volt cell to make > 3 Volts to drive a white LED...(schematic / circuit added 6/07)

High Current LED Driver:    Melexis Application Note  (app note added 6/06)

High Efficiency 12V White LED Driver:    (diagram added 05/07)

High Efficiency ThinSOT White LED Driver Features Internal Switch and Schottky Diode:    DN325  Design Notes (Linear Technology) (app note added 1/06)

High Efficiency White LED Driver Guarantees Matching LED Brightness:    DN267  Design Notes (Linear Technology) (app note added 1/06)

High Efficienty ThinSOT White LED Driver Feature Switche and Schottky Diode:    Linear Technology Magazine Design Ideas May 2004 (app note added 02/05)

High Efficienty White LED Driver Guarantees Matching LED Brightness:    Linear Technology Design Note 267 (app note added 02/05)

Inductive Based Switching Regulator Circuits Provide High Efficiency White LED Driver:    National Semiconductor Application Note 1250 September2002 (app note added 2/05)